Heney hall



I-I. HALL. VALVE.

(No Model.)

Patented Jan, 6, 18815.

W I TA" ESSES area tries.

HENRY HALL, OF IJANSINGBURG, NEW YORK, ASSIGNOR TO HIMSELF AND \VILLIAM S. FLAOK, OF SAME PLACE.

VALVE.

SPECIFICATION forming part of Letters Patent No. 310,509, dated January 6, 1885.

' Application filed May 17, 1884. (No model.)

To ctZZ whom it may concern:

Be it known that I, HENRY HALL, of Lausingburg, in the county of Rensselaer and State of New York, have invented certain new and useful Improvements in Valves 5 and I do here by declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in which Figure 1 is a vertical section showing my improved valve, the disks being held against their seats. Fig. 2 is a similar view of the same parts, the disk being raised out of the body of the valve, to leave a free water (or steam) course. Fig. 3 is a vertical section through the valve, taken in the plane indicated by dotted line now on Fig. 1. Fig. 4 is a horizontal' section through line 1 y on Fi 1.

This invention relates to valves designed for steam and water; and it consists in a certain novel combination of parts whereby separable valve-disks are caused to bear against annular seats in the interior ofthe VZLlVB bOX 2 5 and form a perfectly-tight joint, and whereby the valve-disks can be withdrawn from the bore of the valvebox, so as not to offer any obstruction to the passage of water or steam, as will be fully understood from the following description when taken in connection with the annexed drawings.

A designates the valve-box, and B that part of it through which water or steam is allowed to flow. The bore of the part B is screwtapped to form pipe-couplings, and on top of this part isa screw-tapped cup, 0, into which is screwed the enlarged end of a sleeve, D, thus forming an enlarged chamber adapted to receive the valve-disks when retracted from 0 the bore of the part B, as shown in Fig. 2.

F designates the valve-actuating rod, which is free to turn in the sleeve F, and which is packed atE and provided with a collar, a, and a holding-down ring, a, for the purpose of preventingvertical movement of the rod F. This rod has a male screw-thread, 0, which is tapped into the upper tubular part of a stirrup, G. This stirrup G is constructed with a wedge-shaped portion, and its lower end,

0 is perforated to receive the neck of a block,

H, as shown in Figs. 1 and 2.

V V designate two circular valve-disks,

which are of equal diameter, and of greater diameter than the bore of the part B of the valve-box A. The inner sides of the valvedisks are constructed with inclined planes to, against which. the V-shaped portion 9 of the stirrup G impinges. When the valves are seated they are supported upon lugs 11 b b, which are outside of the bore of the part B. The operation of my valve is as follows: By turning the valverod F in one direction the stirrup will be raised and carry with it the two valves and the block H. By continuing to turn the rod F, the two valves or gates and their block H can be wholly retracted into the cup 0, thereby leaving an unobstructed passage through the bore of the part B. By reversing the valve-rod, the two valves or gates will be depressed and caused to rest upon the lugs b, and by continuing to turn the said rod the wedge 9 will cause the valves or gates to separate, and to firmly press against the annular seats 8 8, thereby effectually cutting off the flow of water or steam. The block H is designed to afford a bearing for the shoulders on the inner faces of the valves or gates when they are fully depressed, to allow the wedge g to force these gates apart and seat them.

I am aware that it is not new in gate-valves to employ disk-valves which are vertically movable by means of a screw-stem, and which are separable, to seat them by means of a wedge on said screw-stem. I therefore do not broadly claim valves thus constructed.

Having described my invention, what I claim as new is The combination, with a valve -boX con structed and bored out as described, and provided with a lug, b, and valve'seats, of the 0 vertically-movable and separable valve-disks or gates, a verticallymovable stirrup, a wedge,

adapted to act on the inclined planes 0 v on the said disks, a movable block, H, adapted to afford a bearing for the valves, and a screw- 5 threaded valve-rod, all constructed and adapted to operate substantially in the manner and for the purposes described.

In testimony that I claim the foregoing as my own I aflix my signature in presence of [00 two witnesses.

HENRY HALL.

\Vitnesses:

HOWARD INGRAHAM, MILFORD H. FANCHER. 

